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10-01-2011, 01:52 PM   #1
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What macro lens to get?

I have the K-5 with Tamron 17-50, Pentax DA 50-135 and a Sigma 8-16 incoming. I am looking for a macro lens and have narrowed it down to the 35mm or 100mm DFA WR Pentax macro lens. Any ideas what I should choose since I have a few lenses already? Thanks.

10-01-2011, 02:21 PM   #2
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https://www.pentaxforums.com/forums/pentax-lens-articles/152336-cheap-macro-b...lose-work.html

I'm sure the DA 35 limited is a very nice lens, but you don't want to buy it as a macro.
10-01-2011, 02:36 PM   #3
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So would you choose the d fa 100 instead?
10-01-2011, 03:56 PM   #4
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If I was going to get an AF macro, I would be looking at the Tamron 90mm for about half the price of the D FA unless you really need the WR. Since you already have the 50-135 you can get your feet wet with a Raynox adapter for a fraction of the cost of a macro lens.

10-01-2011, 05:23 PM   #5
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Hey there. I read some reviews on your suggestion. I will get the tamron 90 mm then. Thanks for the help. What does the raynox adapter do? I have checked it out but I haven't really found a description of what it does. Cheers.
10-01-2011, 05:52 PM   #6
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QuoteOriginally posted by andyph666 Quote
I have the K-5 with Tamron 17-50, Pentax DA 50-135 and a Sigma 8-16 incoming. I am looking for a macro lens and have narrowed it down to the 35mm or 100mm DFA WR Pentax macro lens. Any ideas what I should choose since I have a few lenses already? Thanks.
The big difference in using these two is "working distance": how close you are to the subject. They can both reproduce a subject life-size, but you have to get really close for the 35mm, farther away for the 100mm or 90mm as suggested. That makes the DA 35mm f2.8 Limited more of a small, sharp normal lens with macro available, but not ideal for snakes.

Other than working distance and magnification, dedicated macro lenses are very well-corrected, so when the focal length and speed are within a usable range, you can use them for other subjects. So you can choose a focal length where you might also use it for portraits or a normal lens or short telephoto or something else.
10-01-2011, 08:42 PM   #7
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QuoteOriginally posted by andyph666 Quote
What does the raynox adapter do? I have checked it out but I haven't really found a description of what it does. Cheers.
A Raynox or other closeup adapter brings the working distance closer, and you get magnification. The DCR-250's working distance is about 5in (125mm). The DCR-150 works at around 6.5-8in (165-205mm). The exact magnification depends on the focal length of the lens the Raynox is mounted on: longer lens = more magnification. Raynox closeup adapters are optically corrected and give noticeably better results than cheap uncorrected +dioptre closeup sets. Those are the basics. All else is mere elaboration.
10-01-2011, 10:42 PM   #8
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For macro only, you don't need an AF lens. Often manual focus is preferred. Reason why I have an AF macro is that I also use it as a (light) tele.

10-02-2011, 07:07 AM   #9
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QuoteOriginally posted by RioRico Quote
A Raynox or other closeup adapter brings the working distance closer, and you get magnification. The DCR-250's working distance is about 5in (125mm). The DCR-150 works at around 6.5-8in (165-205mm). The exact magnification depends on the focal length of the lens the Raynox is mounted on: longer lens = more magnification. Raynox closeup adapters are optically corrected and give noticeably better results than cheap uncorrected +dioptre closeup sets. Those are the basics. All else is mere elaboration.
The ~$60 Raynox 250 would be right to get a magnification of 1:1 with your 50-135.. It would take excellent macros of natural subjects like bugs & flowers (that's because it is soft on the edges which doesn't matter with macros of 3D subjects.).

See https://www.pentaxforums.com/forums/lens-clubs/74221-raynox-macro-club.html for example photos...

I have good macro lenses but mostly carry just a raynox in my travel kit in case a macro opportunity arises.
11-07-2011, 05:41 PM   #10
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But what about for babies?

I've been pondering the same question, but for newborn photography. I've been doing newborn photography for nearly 3 years, but with macro attachments or my 35mm FA limited. I want more. I want the macro. I found this thread when trying to choose between the 100m and 35mm macro, myself.

I need to be close to baby, but I know the 100mm macro can get me closer than a standard 100mm. I've worked with my dad's 100mm macro/Nikor.

So, any have thoughts if it's a baby we're working with- both natural light and lighting?

Thanks- been wrestling with this decision for months, and want to decide in this business year- preferred sooner rather than later-
11-07-2011, 05:42 PM   #11
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I have the 50-135mm, too, and even with attachments, it's not what I want.

Thanks =)
11-07-2011, 05:55 PM   #12
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maybe this has been answered already, but does anyone like the manual focusing ring on either the 100wr or the da 35 2.8?
11-07-2011, 05:59 PM   #13
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the manual focusing ring on the 35mm DA 2.8 (not macro) is fine, easy. i have that one. I do not have the macro version.
11-07-2011, 06:21 PM   #14
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oh shoot- sorry- I always forget the 35mm is a 2.4 not 2.8. Sorry for confusion. I've been shooting with it a year, and still can't remember that =) Love that lens (minus purple fringing).

I am wondering about the 2.8 macro-
11-07-2011, 07:04 PM   #15
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QuoteOriginally posted by robyn Quote
So, any have thoughts if it's a baby we're working with- both natural light and lighting?
Both 1:1 macros can produce the same maximum magnification, but I vaguely recall that there is a difference in depth of field when you compare two 1:1 shots at the same settings. My guess is that a shorter focal length would have more DOF if all other settings are equal, as a tradeoff for its shorter working distance. If that's true, for natural-light shots you'd want to be at wide apertures, and more DOF would be good. I tried to look this up but got too much other information.

Otherwise, maybe extra working distance and WR would be useful around babies.
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